invalid_implicit_conversions.swift

// RUN: %target-typecheck-verify-swift

func takesAutoclosure<T>(_ lhs: T, _ rhs: @autoclosure () throws -> T) {}

func test(
  _ rawPtr: UnsafeRawPointer,
  _ mutRawPtr: UnsafeMutableRawPointer,
  _ mutPtr: UnsafeMutablePointer<Int>,
  _ ptr: UnsafePointer<Int>,
  _ ptrI8: UnsafePointer<Int8>,
  _ ptrU8: UnsafePointer<UInt8>,
  _ ptrVoid: UnsafePointer<Void> // expected-warning {{UnsafePointer<Void> has been replaced by UnsafeRawPointer}}
) {
  var i: Int = 0
  var a: [Int] = [0]
  let s = "string"

  takesAutoclosure(rawPtr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
  takesAutoclosure(mutRawPtr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
  takesAutoclosure(mutPtr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
  takesAutoclosure(ptr, &i) // expected-error {{'&' used with non-inout argument of type 'Int'}}
  takesAutoclosure(rawPtr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
  takesAutoclosure(mutRawPtr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
  takesAutoclosure(mutPtr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}
  takesAutoclosure(ptr, &a) // expected-error {{'&' used with non-inout argument of type '[Int]'}}

  takesAutoclosure(rawPtr, a) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafeRawPointer, [Int])'}}
  // expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
  takesAutoclosure(ptr, a) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<Int>, [Int])'}}
  // expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}

  takesAutoclosure(rawPtr, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafeRawPointer, String)'}}
  // expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
  takesAutoclosure(ptrI8, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<Int8>, String)'}}
  // expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
  takesAutoclosure(ptrU8, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<UInt8>, String)'}}
  // expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
  takesAutoclosure(ptrVoid, s) // expected-error {{cannot invoke 'takesAutoclosure' with an argument list of type '(UnsafePointer<Void>, String)'}}
  // expected-note@-1 {{expected an argument list of type '(T, @autoclosure () throws -> T)'}}
}